Crosslinking molecules that permit efficient identification of specifically associated proteins and the sites of crosslinking in biological or other samples include two cleavable bonds that are cleavable under the same conditions as peptide bonds in mass spectrometric determinations. Sets of the invention crosslinkers may be provided with isobaric labels containing reporter ions of differing molecular weights to permit relative quantitation of crosslinked protein pairs.
允许高效地识别特定相关蛋白质及其交联位点的交联分子,在
生物或其他样本中包括两种可在质谱测定中与肽键在相同条件下被裂解的可裂解键。发明的
交联剂集合可以配备含有不同分子量的报告离子的等比标记,以便相对定量交联蛋白质对。